The Dos-A-Dos Steam Runabout was built in 1884 by the combined efforts of Comte de Dion, Georges Bouton, and Charles-Armand Trepardoux. It is more of a train without tracks than a car and it ran on steam. There is a video about it here.

It is the first conventional family car, in that it can be driven by one, seat four, and it was only nine-feet long. The real breakthrough was the vertical steam boiler design built with concentric rings for strength, which drove two rear wheels in a fashion like your average steam locomotive. The Dos-A-Dos could reach speeds of 37 mph on flat straightaways, and had a range of at least 20 miles on a tank of water. But by 1893, gasoline was seen as the fuel of the future, and steam power was put on the back burner.

It can be steamed in 45 minutes. The car was named “La Marquise” after the Count de Dion’s mother.